20430488

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6337}}^1$

素因数の和:6387

約数の個数: 32

約数和(自身を含む): 42591360

約数和(自身を除く): 22160872

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 6337, 12674, 25348, 50696, 82381, 164762, 196447, 329524, 392894, 659048, 785788, 1571576, 2553811, 5107622, 10215244, 20430488]

約数ペア:

[(1, 20430488), (2, 10215244), (4, 5107622), (8, 2553811), (13, 1571576), (26, 785788), (31, 659048), (52, 392894), (62, 329524), (104, 196447), (124, 164762), (248, 82381), (403, 50696), (806, 25348), (1612, 12674), (3224, 6337)]